Aftermarket 20:1 56C Lexar MRV030 Worm Gear Speed ReducerReplacement Part Number: MRV030Specification:This 20:1 ratio speed reducer is rated for 0.30 HP input at 1750 RPM on a hollow 5/8" diameter x 1-7/8" long keyed shaft and 56C mounting flange.Output is 159 lb/in on a hollow 5/8" diameter x 2-1/2" long keyed shaft.Parameter:Ratio: 20:1Input Shaft Diameter: 5/8Output Shaft Diameter: 5/8Mounting Flange: 56CRated HP: 0.3